My WordPress Website Redirect to bigbricks.org and other site

Your site has been compromised (hacked). There are tons of posts and articles on how to de-hack a site. It can be done, but is very time-consuming.

At very least, update/reinstall everything (WordPress, Themes, plugins), change passwords for database and all admin users, remove any unknown admin users, look for extra php files (in every single folder on your site).

You might try the free WordFence plugin to scan your site and look for hacked files (delete them).

Assume that you’ll spend at least 20 hours in fixing/removing things.

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)